The class value provided in v-bind in Vue is not valid

I've encountered a problem with my Vue application. The line :class=require ? 'require' : '' is returning the string 'require' even when the value of require is false. Can anyone help me figure out what's wrong?

<template>
  <custom-label label="Название">
    <input
        class="text_input"
        :class="require ? 'require' : ''"
        :value="$attrs.value" @input="$emit('input', $event.target.value)"
        placeholder="Матрица всея барановичского района"
    />
  </custom-label>
</template>

<script>
export default {
  name: "InputText",
  components: {CustomLabel},
  computed: mapState({ state: state => state }),
  props: {
    require: Boolean
  }
};
</script>

Here are some screenshots from devtools for reference:

Answer №1

Consider using :class="{ require }" as an alternative.

Answer №2

After spending 3 hours trying to figure it out on my own, I finally decided to seek help by posting a question on StackOverflow. Surprisingly, shortly after posting the question, I realized that I had placed a crucial require function in the global scope, which is necessary for importing images, for example.

<img :src="require('./img.png')" />

This was such a silly mistake on my part, but I am hopeful that sharing this experience will prevent others from making the same error in the future.

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